REGEX-Escape for: Hello! Looking for a boyfrend Register and write me, my nickname Kristine98 -&g...

Your Input:
Result, the escaped string:
Hello\! Looking for a boyfrend Register and write me, my nickname Kristine98 \-\>\>\>\>\>\>\>\> http\:\/\/b\.link\/sexdating \dating sex online\<\/a\>

What must the escaping look like for:
Hello! Looking for a boyfrend Register and write me, my nickname Kristine98 ->>>>>>>> http://b.link/sexdating <a href=http://gettingmeet.com>dating sex online</a>

The excaped text for use in a regex is:
Hello\! Looking for a boyfrend Register and write me, my nickname Kristine98 \-\>\>\>\>\>\>\>\> http\:\/\/b\.link\/sexdating \<a href\=http\:\/\/gettingmeet\.com\>dating sex online\<\/a\>